103.1 Work on the Command Line LPIC-1 Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

   Which part of the command `echo $HOME` is an argument?

   • A$HOME
   • B$
   • Cecho
   • DThere are no arguments in this command
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2. 27foundation · easy

   Which operator ensures that the second command runs only if the first command succeeds?

   • A||
   • B;
   • C&
   • D&&
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4. 28application · medium

   A user sets 'MYVAR=hello' in a terminal and then runs a script that needs to read MYVAR. The script prints an empty value. What is the most likely cause?

   • AMYVAR was set with spaces around the equals sign.
   • BThe script runs in a different shell than the one where MYVAR was set.
   • CThe script uses single quotes around $MYVAR.
   • DMYVAR was not exported, so it is not available to child processes.
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5. 29foundation · easy

   Which of the following is a common way to access a shell in a Linux system?

   • AUsing a file manager to navigate directories
   • BBrowsing to a website using a web browser
   • CRunning the 'gcc' command in a text editor
   • DOpening a terminal emulator application
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6. 30foundation · easy

   What is the purpose of the PATH environment variable?

   • AIt stores the home directory path
   • BIt defines the prompt string
   • CIt stores the current working directory
   • DIt lists directories where the shell searches for executable commands
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